In this episode of History Channel's Secret Passages series, we visit: The Fairies Mound of New Grange in Ireland. The mausoleum of the first Chin Emperor of China and his Terra Cotta army. The Catacombs of Rome The Paris Underground.....and you thought "French Underground" was simply a name for the French Resistance movement! The 17th century grave robbers route to the fledgling anatomy program of the newly established University of Maryland.